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su(Hw)

Gene
su(Hw)
Protein
Protein suppressor of hairy wing
Organism
Drosophila melanogaster
Length
941 amino acids
Function
Component of the gypsy chromatin insulator complex which is required for the function of the gypsy chromatin insulator and other endogenous chromatin insulators. Chromatin insulators are regulatory elements which establish independent domains of transcriptional activity within eukaryotic genomes. Insulators have two defining properties; they can block the communication between an enhancer and a promoter when placed between them and can also buffer transgenes from position effect variegation (PEV). Insulators are proposed to structure the chromatin fiber into independent domains of differing transcriptional potential by promoting the formation of distinct chromatin loops. This chromatin looping may involve the formation of insulator bodies, where homotypic interactions between individual subunits of the insulator complex could promote the clustering of widely spaced insulators at the nuclear periphery. Within the gypsy insulator complex, this protein binds specifically to a region of the gypsy element located 3' of the 5' long terminal repeat (LTR), and may also mediate interaction with other endogenous insulators at sites distinct from those recognized by Cp190.
Mass
105.78 kDa
Sequence
MSASKEGKEKKGKLLGVENISPPKDKRPATRMKLLNDVGAGEDSEASTTTTTSRTPSNKQEKRGSVAGSRIKILNEEILGTPKTEKRGATKSTAPAASTVKILNEKKTPSATVTAVETTKIKTSPSKRKKMEHYVLQAVKSENTKADTTVTVVTEEDDTIDFILADDEEVVPGRIENNNGQEIVVTEDDEDLGEDGDEDGEDSSGKGNSSQTKIKEIVEHVCGKCYKTFRRVQSLKKHLEFCRYDSGYHLRKADMLKNLEKIEKDAVVMEKKDICFCCSESYDTFHLGHINCPDCPKSFKTQTSYERHIFITHSEFSDFPCSICNANLRSEALLALHEEQHKSRGKPYACKICGKDFTRSYHLKRHQKYSSCSSNETDTMSCKVCDRVFYRLDNLRSHLKQHLGTQVVKKPEYMCHTCKNCFYSLSTLNIHIRTHTGEKPFDCDLCDKKFSALVALKKHRRYHTGEKPYSCTVCNQAFAVKEVLNRHMKRHTGERPHKCDECGKSFIQATQLRTHSKTHIRPFPCEQCDEKFKTEKQLERHVKTHSRTKRPVFSCAECKRNFRTPALLKEHMDEGKHSPKQQRSSMRSAVKIMERTDCAICDKNFDSSDTLRRHIRTVHECDPDDIFGVEPHPSKRAKKDIESEEVVPVALNTSAGSLISSQTDGNGVVVREFLVDEGDGAAQTITLENETYTILPLDGAIEGEQLTDEAGVKPEAKKEEAQVSPVVKKEQRKSLAASLAAAIADNLEESCSEDDFSGEILTEEDIKLKENVGKLIDMLVDPPILKKYGWPNAPEETVLCKVIENCGHDLTKGGENYAELDYGSRMREYCKLLFTVVIHNDSIKSLLNNFPIDDVIEYVLGDEDQDEGGLDKDNESHSGDEEAVSVTGETKTNEIREKPEKKEVSAKSEKKEIVGKAVDKDNSEEVVRENKKKPVGEQEKA

Gene
su(Hw)
Protein
Protein suppressor of hairy wing
Organism
Drosophila virilis
Length
899 amino acids
Function
Su(Hw) controls the phenotypic effect of the gypsy transposable element. Binds specifically to a region of the gipsy element located 3' of the 5'LTR. It is probably a transcription factor. Could play a role in the establishment of chromatin domains.
Mass
100.592 kDa
Sequence
MSAQEDALPATPPASSSIKISDGDKPKEKRTGTRMKLLNDVAAKAAVASKGASVSPRLKPEKRTSIKILNNNNNDEAQTSTKGGDSVPRPKPPAPASRYRTRSSAPASSAVETAKIKTSPSKKKKMDHYVLQAIKSENNKAENTTSVVVVEDEDTIDFILADDEVELGAGAKENGEEFVVSGVDEDDDDDDDDEDEGVVEGGAKRRSGNNELKEMVEHVCGKCYKTFRRVKSLKKHLEFCRYDSGYHLRKADMLKNLEKIEKDAVVMEKKDISFCCSESYDTFHLGHINCPDCPKSFKTQTSYERHIFITHSWSCNDYPCSICNAKLRSGALLKLHEQQHQLRGKPFACKICGKDFMCSYHLKCHQKYSSCSANENDTMSCKVCDRVFYRLDNLCAHLKQHLGTQVVKKPEYMCHVCKNCFYSLSTLNIHIRTHTGEKPFDCDLCDKKFSALVALKKHRRYHTGEKPYTCTVCSQSFAVKEVLNRHMKRHTGERPHKCNECGKSFIQATQLRTHSKTHLRPYACSLCIQKFKTEKQLERHVKDHTRQKRASFACTECTRSFRTSALLKEHLDAGDHSPVKSTRAKRSAKMIERTDCAICDKNFDTTETLRNHIRSVHECDPDDIFGTEPPAKRKAKKTVVAAVAEEQKEQEDDVPARNTSAGSLISSKTDGNGVVVREFLVDEGDGNAQTIDLRKRGLHHLPLEGDKATESTAETDIKAESSKEKPSVSPVVKKEQRKSLAASLAAAIADNLEEPSSDDEFSGEVLTEEDLKLKENIAKLIDMLVDPQTLKKYGWPNSSEESVLCKVIENCGHDLAKGSEAYAELDYGSRMPILQLLFTVVIHNDSIKALLNNFPIDDVIEYVLGDEDQDQDQETDKGKDREADNTDTDTREDAVESEA

Gene
su(Hw)
Protein
Protein suppressor of hairy wing
Organism
Drosophila ananassae
Length
886 amino acids
Function
Su(Hw) controls the phenotypic effect of the gypsy transposable element. Binds specifically to a region of the gipsy element located 3' of the 5'LTR. It is probably a transcription factor. Could play a role in the establishment of chromatin domains.
Mass
100.297 kDa
Sequence
MSAAKEGKEKKPVATVVKIVEVESVSPSKDKRPTRMKLLNNLSASSPQTYPPKTDKRSGIKGSRIKILNEDVLVAPKVEKRRSTKPTSPGATATSTVKILNEKRIVPAEETALETTKIKISPPKRNKMDHYVLQPVKVENNKSASQATRGATGEDEDTIAFILGDDDEVVPASTSRSNGQEILVTEEEEEEEEDDLDEEGDSPGGSNKNSGHKAIKEIVEHVCGKCYKTFRRLMSLKKHLEFCRYDSGYHLRKAECWKNLEKIEKDGDVLEKKDICFCCCESYDTFHLGHINCPDCPKSFKTQTSYERHIFITHSEFSDYPCSICNANLRSEALLKLHEEQHKSRGKPYACKICGKDFTRSYHLKRHQKYSSCSANENDTMSCKVCDRVFYRLDNLRSHLKHHLGTQVVKKPEYMCHVCKNCFYSLSTLNIHIRTHTGEKPFDCDLCDKKLSALVALKKHRRYHTGEKPYSCTVCNQAFAVKEVLNRHMKRHTGERPHKCEECGKSFIQATQLRTHSKTHIRPFACDMCEEKFKTEKQLERHVKEHSRQKRPYFSCTECKRHFRNTAQLKQHMDAGDHSEKSGEKPQRAKRSSTKVLERTDCAICDKNFDSSETLRKHIRSVHECDPDDIFGIQPPSAKRAKINKIPKVDEEEEEEMVPVALNASSGSLISSQTDDNGVVVREFLVDEGDGTAQTITLENETYTILPLDGEIAAEQITDEGVKVEGQKTPPKKSPVVKKEKRKSLGASLAAAIADNIEVPPVEEDFEGEVLTEEDLKLKENIAKLIDMLADPPILKKYGWPNAPEEMVLCKVIENCGYDLNKGAENYAELDYGSRMREYCKLLFTVVIHNDSIKSLLNNFPIDDVIEYVLGDEDQDEDGADNGEGN